Trichoscopic spectrum of folliculotropic mycosis fungoides

Abstract

Folliculotropic mycosis fungoides (F-MF) is a variant of mycosis fungoides characterized by preferential infiltration of the follicular epithelium by atypical T lymphocytes, with or without follicular mucinosis or infiltration of the intervening epidermis. It is the most common subtype of mycosis fungoides (MF) in adults, with 4% frequency according to WHO classification. Follicular mucinosis refers to depositions of mucin within the follicular epithelium, which may be idiopathic or associated with different benign or malignant skin diseases, including MF.

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